Athletics at the 2007 Pan American Games – Men's 400 metres hurdles
The men's 400 metres hurdles event at the 2007 Pan American Games was held on July 25–27.Medalists
Results
Heats
Qualification: First 2 of each heat and the next 2 fastest qualified for the final.
| Rank | Heat | Name | Nationality | Time | Notes |
| 1 | 2 | LaRon Bennett | | 49.09 | Q |
| 2 | 3 | Adam Kunkel | | 49.27 | Q |
| 3 | 3 | Dean Griffiths | | 49.37 | Q, SB |
| 4 | 1 | Félix Sánchez | | 49.42 | Q |
| 5 | 3 | Javier Culson | | 49.46 | q |
| 6 | 1 | Raphael Fernandes | | 49.53 | Q |
| 7 | 2 | Bayano Kamani | | 49.78 | Q, SB |
| 8 | 2 | Mahau Suguimati | | 49.83 | q |
| 9 | 2 | Jonathan Williams | | 49.84 | |
| 10 | 2 | Sergio Hierrezuelo | | 49.90 | SB |
| 11 | 1 | Yacnier Luis | | 50.04 | |
| 12 | 3 | Andrés Silva | | 50.60 | |
| 13 | 1 | Allan Ayala | | 51.20 | PB |
| 14 | 1 | Jonathan Gibson | | 51.31 | PB |
| 15 | 1 | Steve Delice | | 51.51 | |
| 16 | 3 | Andretti Bain | | 51.53 | |
| 17 | 2 | Luis Montenegro | | 51.58 | |
| 18 | 3 | Jonnie Lowe | | 53.05 | |
| 19 | 1 | Mikel Thomas | | | |
Final
